01 - Preheat oven to 400°F. Prick each potato several times with a fork, lightly coat with olive oil, season with salt, and place directly on the oven rack. Bake for 60 to 70 minutes until skins are crisp and flesh is tender.
02 - While potatoes are baking, heat olive oil in a skillet over medium heat. Add diced onion and cook until softened, about 2 to 3 minutes. Add minced garlic and sauté for 30 seconds until fragrant.
03 - Add ground beef to the skillet. Cook, breaking up with a spoon, until browned and cooked through. Drain excess fat if necessary.
04 - Sprinkle taco seasoning over meat, add water, and stir to combine. Simmer for 3 to 4 minutes until the sauce thickens. Adjust seasoning with salt and black pepper as needed.
05 - Once potatoes are done, remove from oven and let cool until safe to handle. Cut each potato lengthwise and gently fluff the insides with a fork.
06 - Fill each potato with a generous portion of taco meat. Top with shredded cheese, cherry tomatoes, sour cream, sliced black olives, avocado, green onions, and fresh cilantro. Add salsa or hot sauce to taste.
07 - Present immediately, allowing diners to further customize toppings as desired.